3 ms·
They don't need to maintain physical contact. You can have an air gap, as long as the circuit shorts through the projectile. The rails still wear down.
by xyzzy_plugh 7y ago
They don't need to maintain physical contact. You can have an air gap, as long as the circuit shorts through the projectile.
The rails still wear down.
- FreeFull 7y agoIf you have a gap, then you end up with electrical arcing which generates even more heat